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Finding the Fourth Proportional to 570,074.20, 854,576.70 and 215,326.60

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Solution

The fourth proportional to 570,074.20, 854,576.70 and 215,326.60 is: 322,787.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,074.20 : 854,576.70 = 215,326.60 : x
  2. Step 2: Convert to fraction form
    570,074.20/854,576.70 = 215,326.60/x
  3. Step 3: Cross multiply
    570,074.20x = 854,576.70 × 215,326.60
  4. Step 4: Simplify right side
    570,074.20x = 184,013,095,250.22
  5. Step 5: Solve for x
    x = 184,013,095,250.22/570,074.20
  6. Step 6: Final answer
    x = 322,787.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.